Hurricane Helene was expected to weaken over the eastern Atlantic. Forecasters also were tracking two other disturbances.

A fourth storm, Subtropical Storm Joyce, formed shortly before 5 p.m. Wednesday, according to the National Hurricane Center. Joyce is currently spinning in the northern Atlantic and is expected to stay out to sea.

Meanwhile, an area of low pressure producing showers and thunderstorms near the Yucatán Peninsula has a 70 percent chance of further development over the next five days as it moves into the Gulf of Mexico.